Railway-wheel.



No. 845,001. PATENTED m30/19, 1007.

v RAILWAY WHEEL.

APPLICATION FILED SBPT.14,190B.

ATTO R N EYS ALEXANDER S. HENRY, OF NEW YORK, N. Y.

RAILWAY-WHEEL.

Specification of Letters Patent.

Patented Feb. 19, 1907.

Application led September 14,1906. Serial No. 334,685.

lo LZ/Z wir/0711, 'llt may concern.-

Be it known that I, ALEXANDER S. HENRY, a citlzen of the United States of America, and residing in the borough of Manhattan, city of New York, county of New York, in the State of New York, have invented certain new and useful Iniprovements in Railway-VVheels, of which the following is a specification.

This invention relates to wheels, and particularly to railway-wheels, the object ot my invention being to provide a steady and durable wheel the tire of which is electrically insulated from the hub thereof.

In the accompanying drawings, Figure 1 is e side view of portion of a wheel in which my invention is incorporated. Fig. 2 is a crosssection on the line 2 2, Fig. 1.

In carrying out my invention I construct the wheel in three principal portion s-a me tal hub 5, a metal rim 6, and an intervening body portion oi' insulating material 7. 'Ihis body portion may be made of any suitable insulating' material. I prefer, however, to construct it of conpressed paper fiber, which is of great strength and durability when properly prepared and con pressed, as well as being light and a perfect non-conductor. Metal ring-plates are added one on each side of the insulating-body et the wheel to give an additional firmness thereto and to afford a suitable weathcrdiace te the conpressed fiber and also a suitable surface against which the step the latter at 13 and project the insu-v lating-body portion at this point, so that it presses against the face 13a. Thus on secuimi ing the parts together by means of bolts which pass through holes registering through the two plates 8, the 'flange 12, and the body 7, the projecting flange of the latter is clamped against the face 13a of the step 13, thus giving additional firmness to the united parts.

In constructing the ling-plates 8 they are made of such width only that while they may come in contact with the hub they do not make contact with the rim at their outer edge. an electric current could pass between the rim of the wheel and the hub must be through the annular flange 12 on the rim, the bolts 10, which come in .contact therewith, and the side plates S, through which the bolt passes. To prevent this, I enlarge the holes in the flange 12 sufliciently to perrriit the insertion of an insulating-bushing 14, through which the bolt passes. While the tire is thereby insulated from the hub of the wheel, other' bushings may be inserted for additional safety between the bolts 10 and the plates 8 at 15 and 16 and insulating-rings placed between the plates 8 and the rim and its flange at 17 and 18.

yI claim as my invention- 'A wheel having independent hub and rim portions and an intervening non-conducting body portion in combination with an inwardly-projecting annular flange on the rim portion provided with holes, insulating-bushings to line said holes, said plates facing the body portion of the wheel provided with holes registering with the holes in the flange on the rim and securing-bolts passing through said registering holes, substantially as described.

In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

ALEXANDER S. HENRY.

IVitnesses:

Lotus J. DOLFINI, PERoY HARPER.

Consequently the only way by which, 

